MUSEUM OF SCIENCE: Form 990, tax year 2024

View the entire original 990 at ProPublica ↗

Organization: MUSEUM OF SCIENCE (EIN 04-2103916)
Tax period: 2024-07-01 to 2025-06-30
Filed: 2026-05-11
IRS object ID: 202631319349301248
Schema version: 2024v5.5
Source: Download XML · Original 990 at ProPublica

Every field in the e-filed return. Faint text is the IRS element name, for citing.

Return header
Form 990
Schedule A
Schedule B
Schedule C
Schedule D
Schedule F
Schedule G
Schedule I
Schedule J
Schedule M
Schedule O
Schedule R

Return header ReturnHeader

Field	Value	IRS element (for citing)
Return	2026-05-11T08:03:13-05:00	ReturnTs
Tax Period End	2025-06-30	TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

Field	Value	IRS element (for citing)
Preparer Firm EIN	263753134	PreparerFirmEIN

Preparer Firm Name PreparerFirmName

Field	Value	IRS element (for citing)
Business Name Line1	CBIZ ADVISORS LLC	BusinessNameLine1Txt

Preparer US Address PreparerUSAddress

Field	Value	IRS element (for citing)
Address Line1	53 STATE STREET 17TH FLOOR	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	02109	ZIPCd

Field	Value	IRS element (for citing)
Return Type	990	ReturnTypeCd
Tax Period Begin	2024-07-01	TaxPeriodBeginDt

Filer Filer

Field	Value	IRS element (for citing)
EIN	042103916	EIN

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	MUSEUM OF SCIENCE	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Business Name Control	MUSE	BusinessNameControlTxt
Phone	6177232500	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1 SCIENCE PARK	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	02114	ZIPCd

Business Officer BusinessOfficerGrp

Field	Value	IRS element (for citing)
Person	YASMINA BLAISE	PersonNm
Person Title	CFO	PersonTitleTxt
Phone	6177232500	PhoneNum
Signature	2026-05-06	SignatureDt
Discuss With Paid Preparer	Yes (1)	DiscussWithPaidPreparerInd

Field	Value	IRS element (for citing)
IRS Responsible Prty Info Curr	Yes (1)	IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

Field	Value	IRS element (for citing)
Preparer Person	BRENDA L BOOTH	PreparerPersonNm
PTIN	P01342395	PTIN
Phone	6178075000	PhoneNum
Preparation	2026-05-06	PreparationDt

Field	Value	IRS element (for citing)
Tax	2024	TaxYr
Build TS	2025-03-06 01:10:19Z	BuildTS

Form 990 IRS990

Field	Value	IRS element (for citing)
Principal Officer	TIM RITCHIE	PrincipalOfficerNm

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1 SCIENCE PARK	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	02114	ZIPCd

Field	Value	IRS element (for citing)
Gross Receipts	$119,597,022	GrossReceiptsAmt
Group Return For Affiliates	0	GroupReturnForAffiliatesInd
Organization501c3	Yes (X)	Organization501c3Ind
Website Address	WWW.MOS.ORG	WebsiteAddressTxt
Type Of Organization Corp	Yes (X)	TypeOfOrganizationCorpInd
Formation	1831	FormationYr
Legal Domicile State	MA	LegalDomicileStateCd
Activity Or Mission	THE MUSEUM'S MISSION IS TO INSPIRE A LIFELONG LOVE OF SCIENCE IN EVERYONE.	ActivityOrMissionDesc
Voting Members Governing Body	49	VotingMembersGoverningBodyCnt
Voting Members Independent	48	VotingMembersIndependentCnt
Total Employee	476	TotalEmployeeCnt
Total Volunteers	99	TotalVolunteersCnt
Total Gross UBI	$2,181,345	TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm	$1,459,310	NetUnrelatedBusTxblIncmAmt
PY Contributions Grants	$163,862,468	PYContributionsGrantsAmt
CY Contributions Grants	$16,896,964	CYContributionsGrantsAmt
PY Program Service Revenue	$26,014,255	PYProgramServiceRevenueAmt
CY Program Service Revenue	$22,171,242	CYProgramServiceRevenueAmt
PY Investment Income	$12,462,847	PYInvestmentIncomeAmt
CY Investment Income	$10,522,742	CYInvestmentIncomeAmt
PY Other Revenue	$9,511,149	PYOtherRevenueAmt
CY Other Revenue	$6,900,293	CYOtherRevenueAmt
PY Total Revenue	$211,850,719	PYTotalRevenueAmt
CY Total Revenue	$56,491,241	CYTotalRevenueAmt
PY Grants And Similar Paid	$994,647	PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid	$1,077,047	CYGrantsAndSimilarPaidAmt
PY Benefits Paid To Members	$0	PYBenefitsPaidToMembersAmt
CY Benefits Paid To Members	$0	CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid	$30,797,699	PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid	$32,409,547	CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns	$184,565	PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns	$257,265	CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense	$6,049,652	CYTotalFundraisingExpenseAmt
PY Other Expenses	$35,859,460	PYOtherExpensesAmt
CY Other Expenses	$37,294,966	CYOtherExpensesAmt
PY Total Expenses	$67,836,371	PYTotalExpensesAmt
CY Total Expenses	$71,038,825	CYTotalExpensesAmt
PY Revenues Less Expenses	$144,014,348	PYRevenuesLessExpensesAmt
CY Revenues Less Expenses	-$14,547,584	CYRevenuesLessExpensesAmt
Total Assets BOY	$512,816,312	TotalAssetsBOYAmt
Total Assets EOY	$519,926,742	TotalAssetsEOYAmt
Total Liabilities BOY	$22,608,514	TotalLiabilitiesBOYAmt
Total Liabilities EOY	$27,943,949	TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY	$490,207,798	NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY	$491,982,793	NetAssetsOrFundBalancesEOYAmt
Info In Schedule O Part III	Yes (X)	InfoInScheduleOPartIIIInd
Mission	THE MISSION OF THE MUSEUM OF SCIENCE IS TO INSPIRE A LIFELONG LOVE OF SCIENCE IN EVERYONE. THROUGH EXHIBITS, CURRICULA, PROGRAMS, AND EVENTS, BOTH LIVE AND VIRTUAL, WE AIM TO MAKE SCIENCE AND SCIENTIFIC THINKING ACCESSIBLE, ENGAGING, AND RELEVANT. WE COLLABORATE ACROSS DISCIPLINES TO HELP PEOPLE EVERYWHERE SEE AND APPRECIATE THE SCIENCE IN EVERYTHING. OUR VISION IS A WORLD IN WHICH SCIENCE BELONGS TO EACH OF US FOR THE GOOD OF ALL OF US.	MissionDesc
Significant New Program Srvc	0	SignificantNewProgramSrvcInd
Significant Change	0	SignificantChangeInd
Expense	$18,611,486	ExpenseAmt
Grant	$13,100	GrantAmt
Revenue	$804,241	RevenueAmt
Desc	EXHIBITS INCLUDE OVER 900 STANDING EXHIBITS, HOUSED IN 132,000 SQ FT OF GALLERY AND RELATED SPACE, PROVIDING HANDS-ON EXPERIENCES IN ALL AREAS OF SCIENCE, TECHNOLOGY, AND THEIR SOCIAL IMPACT. THE MUSEUM CREATES PERMANENT AND TRAVELLING EXHIBITS BOTH ON ITS OWN AND IN COLLABORATION WITH OTHER INSTITUTIONS, AND IS ONE OF LEADERSHIP PARTNERS IN THE NATIONAL INFORMAL STEM EDUCATION NETWORK (NISENET), A NETWORK OF APPROXIMATELY 600 MUSEUMS, COLLEGES/UNIVERSITIES, LIBRARIES, SCIENTIFIC PROFESSIONAL ORGANIZATIONS, AND RESEARCH INSTITUTIONS WHICH CREATES AND SHARES EXHIBITS AND PROGRAMS RELATING TO IMPORTANT CURRENT SCIENCE AND TECHNOLOGY TOPICS. A MUSEUM-PRODUCED TRAVELING EXHIBIT CALLED THE SCIENCE BEHIND PIXAR HIGHLIGHTS THE MATH AND SCIENCE SKILLS PIXAR FILMMAKERS USE IN BRINGING THEIR FILMS TO LIFE. TWO COPIES OF THIS EXHIBIT ARE CURRENTLY TOURING OTHER US AND INTERNATIONAL MUSEUMS. THE MUSEUM ALSO HOSTS TRAVELING EXHIBITS PRODUCED BY OTHER INSTITUTIONS. TRAVELING EXHIBITS HOSTED BY THE MUSEUM THIS YEAR INCLUDED: THE SCIENCE BEHIND PIXAR WHICH CLOSED IN SEPT 2021; RESILIENT VENICE; NE CLIMATE STORIES; ALL ABOARD! TRAINS AT SCIENCE PARK; EMOTIONS AT PLAY WITH PIXAR'S INSIDE OUT; GAIA EARTH GLOBE; ELECTRIC PLAYHOUSE TRAVELS.	Desc

Prog Srvc Accom Acty2 ProgSrvcAccomActy2Grp

Field	Value	IRS element (for citing)
Expense	$14,001,559	ExpenseAmt
Grant	$430,676	GrantAmt
Revenue	$10,082,275	RevenueAmt
Desc	PUBLIC PROGRAMS INCLUDE EXHIBIT INTERPRETATION, LECTURE SERIES, LIVE ANIMAL DEMONSTRATIONS (THE MUSEUM IS ACCREDITED BY THE ASSOCIATION OF ZOOS AND AQUARIUMS), PHYSICAL SCIENCE DEMONSTRATIONS, LIGHTNING SHOWS IN THE THOMSON THEATER OF ELECTRICITY, SPECIAL EVENTS, DEMONSTRATIONS AND PODCASTS RELATING TO TOPICS OF CURRENT SCIENCE AND TECHNOLOGY, HANDS-ON DESGN CHALLENGES. (906,900 ONSITE VISITORS AND ONLINE VISITORS SERVED.)	Desc

Prog Srvc Accom Acty3 ProgSrvcAccomActy3Grp

Field	Value	IRS element (for citing)
Expense	$7,765,515	ExpenseAmt
Grant	$18,221	GrantAmt
Revenue	$2,298,575	RevenueAmt
Desc	THEATERS INCLUDE THE CHARLES HAYDEN PLANETARIUM, OFFERING PRESENTATIONS, EVENTS, AND DEMONSTRATIONS OF ASTRONOMY AND SPACE SCIENCE TOPICS, CURRENT DISCOVERIES, AND OTHER SCIENCE/TECHNOLOGY-INSPIRED PROGRAMMING. THE MUGAR OMNI THEATER, THE LARGEST DOMED IMAX THEATER IN NEW ENGLAND, OFFERS DIGITAL DOCUMENTARY AND SCIENCE-FICTION INSPIRED FILMS AND PRESENTATIONS, WHILE A SMALLER 4-D THEATER OFFERS SHORT 3-D FILMS ON A RANGE OF SCIENCE AND NATURE TOPICS AUGMENTED BY SENSORY EFFECTS SUCH AS WIND, MIST, AND SMELL. PLANETARIUM SHOWS THIS YEAR INCLUDED: BIG BIRD'S ADVENTURE: ONE WORLD, ONE SKY; DESTINATION MARS: THE NEW FRONTIER; FROM DREAM TO DISCOVERY: INSIDE NASA; EXPLORE OUR CHANGING EARTH; EXPLORE THE UNIVERSE; MOONS: WORLDS OF MYSTERY; UNDISCOVERED WORLDS: THE SEARCH BEYOND OUR SUN; THE BEYONCE EXPERIENCE; THE FLEETWOOD MAC EXPERIENCE; PINK FLOYD: THE WALL; THE PRINCE EXPERIENCE; THE RADIOHEAD EXPERIENCE IMAX FILMS INCLUDED: ANCIENT CAVES; BACK FROM THE BRINK: SAVED FROM EXTINCTION; ROCKY MOUNTAIN EXPRESS; SUPERPOWER DOGS. OMNI SCI-FI FILMS: DUNE; MATRIX: RESURRECTIONS 4D THEATER FILMS INCLUDED: SHARKS: A 4-D EXPERIENCE; ICE WORLDS: 4D; PENGUINS: 4D; POLAR EXPRESS: 4D; SPLASH & BUBBLES: 4D; THOMAS: 4D (465,900 THEATER VISITORS SERVED)	Desc

Prog Srvc Accom Acty Other ProgSrvcAccomActyOtherGrp (2 entries)

ExpenseExpenseAmt	GrantGrantAmt	RevenueRevenueAmt	DescDesc
$6,319,094	$78,790	$4,840,370	SERVICES PROVIDED PRIMARILY FOR THE BENEFIT OF OUR MEMBERS INCLUDE OUR PARKING FACILITY, MEMBERSHIP OFFICE, AND GIFT SHOP. (32,885 MEMBER HOUSEHOLDS)
$5,679,672	$536,260	$3,608,735	EDUCATION PROGRAMS INCLUDE FIELD TRIPS PROGRAMS FOR SCHOOL GROUPS, CURRICULUM MATERIALS UNDER OUR EIE. THE MUSEUM IS PART OF AN AWARD-WINNING DIVISION, EIE, THAT DEVELOPS FOUNDATIONAL SKILLS IN SCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS (STEM) SUBJECTS FOR ALL STUDENTS. THE RESEARCH-BASED, HANDS-ON CURRICULA ARE DESIGNED TO BEST INNOVATE FOR THE REALITY OF TODAY'S EDUCATIONAL LANDSCAPE AND TO ENGAGE ALL STUDENTS. RECENTLY MOS PARTNERED WITH KAHOOT TO CREATE EXCITING, ENGAGING AND FUN LEARNING EXPERIENCES FOR LEARNERS GRADES 1-8. SINCE ITS INCEPTION, EIE HAS REACHED AN ESTIMATED 20 MILLION STUDENTS AND 200,000 EDUCATORS IN ALL 50 STATES.

Field	Value	IRS element (for citing)
Total Other Prog Srvc Expense	$11,998,766	TotalOtherProgSrvcExpenseAmt
Total Other Prog Srvc Grant	$615,050	TotalOtherProgSrvcGrantAmt
Total Other Prog Srvc Revenue	$8,449,105	TotalOtherProgSrvcRevenueAmt
Total Program Service Expenses	$52,377,326	TotalProgramServiceExpensesAmt
Described In Section501c3	Yes (1)	DescribedInSection501c3Ind
Schedule B Required	Yes (1)	ScheduleBRequiredInd
Political Campaign Acty	0	PoliticalCampaignActyInd
Lobbying Activities	Yes (1)	LobbyingActivitiesInd
Subject To Proxy Tax	0	SubjectToProxyTaxInd
Donor Advised Fund	0	DonorAdvisedFundInd
Conservation Easements	0	ConservationEasementsInd
Collections Of Art	Yes (1)	CollectionsOfArtInd
Credit Counseling	0	CreditCounselingInd
Donor Rstr Or Quasi Endowments	Yes (1)	DonorRstrOrQuasiEndowmentsInd
Report Land Building Equipment	Yes (1)	ReportLandBuildingEquipmentInd
Report Investments Other Sec	Yes (1)	ReportInvestmentsOtherSecInd
Report Program Related Invst	0	ReportProgramRelatedInvstInd
Report Other Assets	0	ReportOtherAssetsInd
Report Other Liabilities	Yes (1)	ReportOtherLiabilitiesInd
Include FIN48 Footnote	Yes (1)	IncludeFIN48FootnoteInd
Independent Audit Fincl Stmt	Yes (1)	IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt	0	ConsolidatedAuditFinclStmtInd
School Operating	0	SchoolOperatingInd
Foreign Office	0	ForeignOfficeInd
Foreign Activities	Yes (1)	ForeignActivitiesInd
More Than5000 K To Org	0	MoreThan5000KToOrgInd
More Than5000 K To Individuals	0	MoreThan5000KToIndividualsInd
Professional Fundraising	Yes (1)	ProfessionalFundraisingInd
Fundraising Activities	Yes (1)	FundraisingActivitiesInd
Gaming Activities	0	GamingActivitiesInd
Operate Hospital	0	OperateHospitalInd
Grants To Organizations	Yes (1)	GrantsToOrganizationsInd
Grants To Individuals	Yes (1)	GrantsToIndividualsInd
Schedule J Required	Yes (1)	ScheduleJRequiredInd
Tax Exempt Bonds	0	TaxExemptBondsInd
Engaged In Excess Benefit Trans	0	EngagedInExcessBenefitTransInd
PY Excess Benefit Trans	0	PYExcessBenefitTransInd
Loan Outstanding	0	LoanOutstandingInd
Grant To Related Person	0	GrantToRelatedPersonInd
Business Rln With Org Mem	0	BusinessRlnWithOrgMemInd
Business Rln With Fam Mem	0	BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent	0	BusinessRlnWith35CtrlEntInd
Deductible Non Cash Contri	Yes (1)	DeductibleNonCashContriInd
Deductible Art Contribution	0	DeductibleArtContributionInd
Terminate Operations	0	TerminateOperationsInd
Partial Liquidation	0	PartialLiquidationInd
Disregarded Entity	0	DisregardedEntityInd
Related Entity	Yes (1)	RelatedEntityInd
Related Organization Ctrl Ent	Yes (1)	RelatedOrganizationCtrlEntInd
Transaction With Control Ent	0	TransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org	0	TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp	0	ActivitiesConductedPrtshpInd
Schedule O Required	Yes (1)	ScheduleORequiredInd
IRP Document	216	IRPDocumentCnt
IRP Document W2 G	0	IRPDocumentW2GCnt
Backup Wthld Compliance	Yes (1)	BackupWthldComplianceInd
Employee	476	EmployeeCnt
Employment Tax Returns Filed	Yes (1)	EmploymentTaxReturnsFiledInd
Unrelated Bus Incm Over Limit	Yes (1)	UnrelatedBusIncmOverLimitInd
Form990 T Filed	Yes (1)	Form990TFiledInd
Foreign Financial Account	0	ForeignFinancialAccountInd
Prohibited Tax Shelter Trans	0	ProhibitedTaxShelterTransInd
Taxable Party Notification	0	TaxablePartyNotificationInd
Nondeductible Contributions	0	NondeductibleContributionsInd
Quid Pro Quo Contributions	Yes (1)	QuidProQuoContributionsInd
Quid Pro Quo Contri Discl	Yes (1)	QuidProQuoContriDisclInd
Form8282 Property Disposed Of	0	Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct	0	RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct	0	PayPremiumsPrsnlBnftCntrctInd
Indoor Tanning Services	0	IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt	0	SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc	0	SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VI	Yes (X)	InfoInScheduleOPartVIInd
Governing Body Voting Members	49	GoverningBodyVotingMembersCnt
Independent Voting Member	48	IndependentVotingMemberCnt
Family Or Business Rln	0	FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties	0	DelegationOfMgmtDutiesInd
Change To Org Documents	0	ChangeToOrgDocumentsInd
Material Diversion Or Misuse	0	MaterialDiversionOrMisuseInd
Members Or Stockholders	0	MembersOrStockholdersInd
Election Of Board Members	0	ElectionOfBoardMembersInd
Decisions Subject To Approva	0	DecisionsSubjectToApprovaInd
Minutes Of Governing Body	Yes (1)	MinutesOfGoverningBodyInd
Minutes Of Committees	Yes (1)	MinutesOfCommitteesInd
Officer Mailing Address	0	OfficerMailingAddressInd
Local Chapters	0	LocalChaptersInd
Form990 Provided To Gvrn Body	Yes (1)	Form990ProvidedToGvrnBodyInd
Conflict Of Interest Policy	Yes (1)	ConflictOfInterestPolicyInd
Annual Disclosure Covered Prsn	Yes (1)	AnnualDisclosureCoveredPrsnInd
Regular Monitoring Enfrc	Yes (1)	RegularMonitoringEnfrcInd
Whistleblower Policy	Yes (1)	WhistleblowerPolicyInd
Document Retention Policy	Yes (1)	DocumentRetentionPolicyInd
Compensation Process CEO	Yes (1)	CompensationProcessCEOInd
Compensation Process Other	Yes (1)	CompensationProcessOtherInd
Investment In Joint Venture	0	InvestmentInJointVentureInd
States Where Copy Of Return Is Fld	AK	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	AL	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	AR	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	AS	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	AZ	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	CA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	CO	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	CT	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	FL	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	GA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	HI	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	IL	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	KS	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	KY	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	LA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MD	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	ME	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MI	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MN	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MO	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MS	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NC	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	ND	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NH	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NJ	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NM	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NV	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	NY	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	OH	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	OK	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	OR	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	PA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	RI	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	SC	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	TX	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	UT	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	VA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	WA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	WI	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	WV	StatesWhereCopyOfReturnIsFldCd
Upon Request	Yes (X)	UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	YASMINA BLAISE	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Phone	6175704591	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1 SCIENCE PARK	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	021141099	ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (66 entries)

TitleTitleTxt	Average Hours Per WeekAverageHoursPerWeekRt	Individual Trustee Or DirectorIndividualTrusteeOrDirectorInd	OfficerOfficerInd	Reportable Comp From OrgReportableCompFromOrgAmt	Reportable Comp From Rltd OrgReportableCompFromRltdOrgAmt	Other CompensationOtherCompensationAmt	Key EmployeeKeyEmployeeInd	Highest Compensated EmployeeHighestCompensatedEmployeeInd	Former Ofcr Director TrusteeFormerOfcrDirectorTrusteeInd
TIMOTHY RITCHIE
PRESIDENT	40.00	Yes (X)	Yes (X)	$508,661	$0	$21,303
ALEXIS A BORISY
CHAIR	1.00	Yes (X)	Yes (X)	$0	$0	$0
GWILL ELAINE YORK
VICE-CHAIR	1.00	Yes (X)	Yes (X)	$0	$0	$0
REBECCA S KANTAR
VICE-CHAIR	1.00	Yes (X)	Yes (X)	$0	$0	$0
ADAM M KOPPEL
VICE-CHAIR	1.00	Yes (X)	Yes (X)	$0	$0	$0
MARIA L KUSSMAUL
VICE-CHAIR	1.00	Yes (X)	Yes (X)	$0	$0	$0
DAVID M ALTSHULER
TRUSTEE	1.00	Yes (X)		$0	$0	$0
LAUREN BAKER
TRUSTEE	1.00	Yes (X)		$0	$0	$0
NILANJANA BHOWMIK
TRUSTEE (UNTIL 1/2/25)	1.00	Yes (X)		$0	$0	$0
PRIYANKA J BOBBILI
TRUSTEE	1.00	Yes (X)		$0	$0	$0
ABRAHAM N CEESAY
TRUSTEE	1.00	Yes (X)		$0	$0	$0
STACY L COWAN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
MARCUS O P DEFLORIMONTE
TRUSTEE	1.00	Yes (X)		$0	$0	$0
BECKY DUSEAU
TRUSTEE	1.00	Yes (X)		$0	$0	$0
PAUL EGERMAN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
RANA EL KALIOUBY
TRUSTEE	1.00	Yes (X)		$0	$0	$0
HELEN GREINER
TRUSTEE	1.00	Yes (X)		$0	$0	$0
LESLIE E GREIS
TRUSTEE	1.00	Yes (X)		$0	$0	$0
KRISTI J HUMMEL
TRUSTEE	1.00	Yes (X)		$0	$0	$0
GREGORY B JANEY
TRUSTEE	1.00	Yes (X)		$0	$0	$0
ANDREA KANEB
TRUSTEE	1.00	Yes (X)		$0	$0	$0
WAYNE M KENNARD
TRUSTEE	1.00	Yes (X)		$0	$0	$0
KATE D LEVIN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
LEO X LIU
TRUSTEE	1.00	Yes (X)		$0	$0	$0
JOY LUCAS
TRUSTEE	1.00	Yes (X)		$0	$0	$0
IVANA MAGOVCEVIC-LIEBISCH
TRUSTEE	1.00	Yes (X)		$0	$0	$0
DEBBIE L MILLIN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
YIANNIS MONOVOUKAS
TRUSTEE	1.00	Yes (X)		$0	$0	$0
CHINH H PHAM
TRUSTEE	1.00	Yes (X)		$0	$0	$0
JAMES P ROSENFIELD
TRUSTEE	1.00	Yes (X)		$0	$0	$0
RUDY L RUGGLES III
TRUSTEE	1.00	Yes (X)		$0	$0	$0
NAVJOT SINGH
TRUSTEE	1.00	Yes (X)		$0	$0	$0
PAYSON SWAFFIELD
TRUSTEE	1.00	Yes (X)		$0	$0	$0
HARRIETT TEE TAGGART
TRUSTEE	1.00	Yes (X)		$0	$0	$0
SOPHIE V VANDEBROEK
TRUSTEE	1.00	Yes (X)		$0	$0	$0
JEFFREY P JOHNSON
CORPORATION COUNSEL	1.00	Yes (X)		$0	$0	$0
LEILANI I GERMAIN
CHAIR, MUSEUM ADVISORS	1.00	Yes (X)		$0	$0	$0
ANJALI FEDSON HACK
TRUSTEE	1.00	Yes (X)		$0	$0	$0
BONAVENTURE AGATA
TRUSTEE	1.00	Yes (X)		$0	$0	$0
JARASA KANOK
TRUSTEE	1.00	Yes (X)		$0	$0	$0
IGNACIO MARTINEZ
TRUSTEE	1.00	Yes (X)		$0	$0	$0
PARISS CHANDLER
CHAIR, THE INNOVATORS	1.00	Yes (X)		$0	$0	$0
PRITI H CHATTER
TRUSTEE	1.00	Yes (X)		$0	$0	$0
DEBORAH DUNSIRE
TRUSTEE	1.00	Yes (X)		$0	$0	$0
DOUG FAMBROUGH
TRUSTEE	1.00	Yes (X)		$0	$0	$0
SUSAN GRAHAM JOHNSTON
TRUSTEE	1.00	Yes (X)		$0	$0	$0
MEGAN A GREENFIELD
TRUSTEE	1.00	Yes (X)		$0	$0	$0
KURT MELDEN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
KATHERINE L RELIHAN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
RICKY L SUN
TRUSTEE	1.00	Yes (X)		$0	$0	$0
KIM THORNTON
TRUSTEE (UNTIL 9/18/24)	1.00	Yes (X)		$0	$0	$0
SOL CARBONNELL
TRUSTEE (UNTIL 8/24/24)	1.00	Yes (X)		$0	$0	$0
SEVERINE J IMBERT DE SMIRNOFF
CHIEF OF STRATEGIC INITIATIVES	40.00		Yes (X)	$290,355	$0	$37,642
YASMINA M BLAISE
CHIEF FINANCIAL OFFICER	40.00		Yes (X)	$283,351	$0	$15,865
TODD SPERRY
CHIEF MARKETING OFFICER	40.00			$309,176	$0	$20,835	Yes (X)
CHRISTINE M CUNNINGHAM
CHIEF OF LEARNING	40.00			$288,943	$0	$20,237	Yes (X)
ROBERT K MOHLER
CHIEF ADVANCEMENT OFFICER	40.00			$212,716	$0	$2,063	Yes (X)
TIMOTHY J PORTER
SVP EXHIBITS, RESEARCH, AND COLLECTIONS	40.00			$206,571	$0	$17,437	Yes (X)
LYDIA A BEALL
SVP, PACE	40.00			$188,737	$0	$24,088	Yes (X)
THOMAS A CATALINI
AVP, IT	40.00			$227,771	$0	$15,458		Yes (X)
PAUL J IPPOLITO
SVP, FINANCE AND BUILDING OPERATIONS	40.00			$210,990	$0	$29,854		Yes (X)
RACHEL T DEMASTER
DIRECTOR OF ADVANCEMENT EVENTS	40.00			$177,911	$0	$25,292		Yes (X)
INSOO HYUN
DIRECTOR OF CENTER FOR LIFE SCIENCES	40.00			$175,077	$0	$33,783		Yes (X)
KARA J PETERSON
SR DIRECTOR MARKETING	40.00			$173,220	$0	$35,490		Yes (X)
MIRIAM KRONBERG
FMR. CHIEF OF FINANCE (UNTIL 1/24)	40.00			$308,371	$0	$1,769			Yes (X)
YUISA PEREZ
FMR. CHIEF OF PEOPLE (UNTIL 5/24)	1.00			$143,790	$0	$18,076			Yes (X)

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	$3,705,640	TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org	$0	TotReportableCompRltdOrgAmt
Total Other Compensation	$319,192	TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K	64	IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed	Yes (1)	FormerOfcrEmployeesListedInd
Total Comp Greater Than150 K	Yes (1)	TotalCompGreaterThan150KInd
Compensation From Other Srcs	0	CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (5 entries)

Address Line1ContractorAddress/USAddress/AddressLine1Txt	CityContractorAddress/USAddress/CityNm	State AbbreviationContractorAddress/USAddress/StateAbbreviationCd	ZIPContractorAddress/USAddress/ZIPCd	ServicesServicesDesc	CompensationCompensationAmt	Address Line1ContractorAddress/ForeignAddress/AddressLine1Txt	CityContractorAddress/ForeignAddress/CityNm	CountryContractorAddress/ForeignAddress/CountryCd	Foreign PostalContractorAddress/ForeignAddress/ForeignPostalCd
CONSIGLI CONSTRUCTION CO INC
72 SUMNER STREET	MILFORD	MA	01757	CONSTRUCTION	$19,146,806
WILLIAM RAWN ASSOCIATES
27 SCHOOL STREET	BOSTON	MA	02108	ARCHITECTURE	$6,429,395
CHRPS LLC
175 BAXTER NECK RD	MARSTONS MILLS	MA	02648	CONSULTING	$2,394,743
C&W FACILITY SERVICES INC (DTZ)
140 KENDRICK ST BUILDING C SUITE 20	NEEDHAM	MA	02949	CONSULTING	$1,310,746
LES STUDIOS MOMENT FACTORY INC
				FILM PRODUCTION	$452,385	6250 AVENUE DU PARC	MONTREAL	CA	H2V4H8

Field	Value	IRS element (for citing)
Cntrct Rcvd Greater Than100 K	20	CntrctRcvdGreaterThan100KCnt
Membership Dues	$1,441,284	MembershipDuesAmt
Fundraising	$1,299,544	FundraisingAmt
Government Grants	$2,869,368	GovernmentGrantsAmt
All Other Contributions	$11,286,768	AllOtherContributionsAmt
Noncash Contributions	$229,409	NoncashContributionsAmt
Total Contributions	$16,896,964	TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp (5 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Related Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt	ExclusionExclusionAmt
ADMISSIONS	712110	$12,545,231	$12,545,231
MEMBERSHIP BENEFITS	712110	$4,364,614	$4,364,614
PARKING	812930	$3,837,418		$3,837,418
EXHIBIT RENTAL FEES	712110	$735,227	$735,227
EDUCATIONAL PROGRAM INCOME	611699	$663,259	$663,259

Total Oth Program Service Rev TotalOthProgramServiceRevGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$25,493	TotalRevenueColumnAmt
Related Or Exempt Func Income	$25,493	RelatedOrExemptFuncIncomeAmt

Field	Value	IRS element (for citing)
Total Program Service Revenue	$22,171,242	TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$7,408,071	TotalRevenueColumnAmt
Unrelated Business Revenue	$571,458	UnrelatedBusinessRevenueAmt
Exclusion	$6,836,613	ExclusionAmt

Royalties Revenue RoyaltiesRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$91,899	TotalRevenueColumnAmt
Related Or Exempt Func Income	$91,899	RelatedOrExemptFuncIncomeAmt

Gross Rents GrossRentsGrp

Field	Value	IRS element (for citing)
Real	$2,514,653	RealAmt

Less Rental Expenses LessRentalExpensesGrp

Field	Value	IRS element (for citing)
Real	$0	RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Real	$2,514,653	RealAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$2,514,653	TotalRevenueColumnAmt
Unrelated Business Revenue	$1,001,100	UnrelatedBusinessRevenueAmt
Exclusion	$1,513,553	ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

Field	Value	IRS element (for citing)
Securities	$63,547,191	SecuritiesAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

Field	Value	IRS element (for citing)
Securities	$60,432,520	SecuritiesAmt

Gain Or Loss GainOrLossGrp

Field	Value	IRS element (for citing)
Securities	$3,114,671	SecuritiesAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$3,114,671	TotalRevenueColumnAmt
Unrelated Business Revenue	$142,377	UnrelatedBusinessRevenueAmt
Exclusion	$2,972,294	ExclusionAmt

Field	Value	IRS element (for citing)
Fundraising Gross Income	$1,400	FundraisingGrossIncomeAmt
Contri Rpt Fundraising Event	$1,299,544	ContriRptFundraisingEventAmt
Fundraising Direct Expenses	$777,916	FundraisingDirectExpensesAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

Field	Value	IRS element (for citing)
Total Revenue Column	-$776,516	TotalRevenueColumnAmt
Exclusion	-$776,516	ExclusionAmt

Field	Value	IRS element (for citing)
Gross Sales Of Inventory	$3,316,193	GrossSalesOfInventoryAmt
Cost Of Goods Sold	$1,895,345	CostOfGoodsSoldAmt

Net Income Or Loss NetIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$1,420,848	TotalRevenueColumnAmt
Related Or Exempt Func Income	$1,420,848	RelatedOrExemptFuncIncomeAmt

Other Revenue Misc OtherRevenueMiscGrp (3 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Unrelated Business RevenueUnrelatedBusinessRevenueAmt	ExclusionExclusionAmt
ANCILLARY SERVICES	531120	$1,670,094	$466,410	$1,203,684
CONCESSION FEES	900099	$805,205		$805,205
SPONSORSHIP	900099	$557,215		$557,215

Miscellaneous Revenue MiscellaneousRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$616,895	TotalRevenueColumnAmt
Exclusion	$616,895	ExclusionAmt

Field	Value	IRS element (for citing)
Other Revenue Total	$3,649,409	OtherRevenueTotalAmt

Total Revenue TotalRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$56,491,241	TotalRevenueColumnAmt
Related Or Exempt Func Income	$19,846,571	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$2,181,345	UnrelatedBusinessRevenueAmt
Exclusion	$17,566,361	ExclusionAmt

Grants To Domestic Orgs GrantsToDomesticOrgsGrp

Field	Value	IRS element (for citing)
Total	$1,032,221	TotalAmt
Program Services	$1,032,221	ProgramServicesAmt

Grants To Domestic Individuals GrantsToDomesticIndividualsGrp

Field	Value	IRS element (for citing)
Total	$44,826	TotalAmt
Program Services	$44,826	ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

Field	Value	IRS element (for citing)
Total	$2,442,882	TotalAmt
Program Services	$881,931	ProgramServicesAmt
Management And General	$1,080,848	ManagementAndGeneralAmt
Fundraising	$480,103	FundraisingAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

Field	Value	IRS element (for citing)
Total	$24,229,289	TotalAmt
Program Services	$18,579,805	ProgramServicesAmt
Management And General	$2,664,183	ManagementAndGeneralAmt
Fundraising	$2,985,301	FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

Field	Value	IRS element (for citing)
Total	$1,024,216	TotalAmt
Program Services	$787,713	ProgramServicesAmt
Management And General	$108,004	ManagementAndGeneralAmt
Fundraising	$128,499	FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

Field	Value	IRS element (for citing)
Total	$2,635,604	TotalAmt
Program Services	$2,027,566	ProgramServicesAmt
Management And General	$278,001	ManagementAndGeneralAmt
Fundraising	$330,037	FundraisingAmt

Payroll Taxes PayrollTaxesGrp

Field	Value	IRS element (for citing)
Total	$2,077,556	TotalAmt
Program Services	$1,597,825	ProgramServicesAmt
Management And General	$219,079	ManagementAndGeneralAmt
Fundraising	$260,652	FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

Field	Value	IRS element (for citing)
Total	$96,026	TotalAmt
Program Services	$19,351	ProgramServicesAmt
Management And General	$75,626	ManagementAndGeneralAmt
Fundraising	$1,049	FundraisingAmt

Fees For Services Accounting FeesForServicesAccountingGrp

Field	Value	IRS element (for citing)
Total	$210,058	TotalAmt
Management And General	$210,058	ManagementAndGeneralAmt

Fees For Services Lobbying FeesForServicesLobbyingGrp

Field	Value	IRS element (for citing)
Total	$168,543	TotalAmt
Fundraising	$168,543	FundraisingAmt

Fees For Services Prof Fundraising FeesForServicesProfFundraising

Field	Value	IRS element (for citing)
Total	$257,265	TotalAmt
Fundraising	$257,265	FundraisingAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

Field	Value	IRS element (for citing)
Total	$2,963,339	TotalAmt
Management And General	$2,963,339	ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

Field	Value	IRS element (for citing)
Total	$6,699,983	TotalAmt
Program Services	$5,877,837	ProgramServicesAmt
Management And General	$717,352	ManagementAndGeneralAmt
Fundraising	$104,794	FundraisingAmt

Advertising AdvertisingGrp

Field	Value	IRS element (for citing)
Total	$1,253,217	TotalAmt
Program Services	$1,224,830	ProgramServicesAmt
Management And General	$12,148	ManagementAndGeneralAmt
Fundraising	$16,239	FundraisingAmt

Office Expenses OfficeExpensesGrp

Field	Value	IRS element (for citing)
Total	$2,355,976	TotalAmt
Program Services	$2,110,626	ProgramServicesAmt
Management And General	$125,781	ManagementAndGeneralAmt
Fundraising	$119,569	FundraisingAmt

Information Technology InformationTechnologyGrp

Field	Value	IRS element (for citing)
Total	$3,165,792	TotalAmt
Program Services	$1,749,448	ProgramServicesAmt
Management And General	$869,390	ManagementAndGeneralAmt
Fundraising	$546,954	FundraisingAmt

Royalties RoyaltiesGrp

Field	Value	IRS element (for citing)
Total	$100,411	TotalAmt
Program Services	$100,411	ProgramServicesAmt

Occupancy OccupancyGrp

Field	Value	IRS element (for citing)
Total	$3,436,068	TotalAmt
Program Services	$2,982,640	ProgramServicesAmt
Management And General	$374,104	ManagementAndGeneralAmt
Fundraising	$79,324	FundraisingAmt

Travel TravelGrp

Field	Value	IRS element (for citing)
Total	$859,127	TotalAmt
Program Services	$773,591	ProgramServicesAmt
Management And General	$46,479	ManagementAndGeneralAmt
Fundraising	$39,057	FundraisingAmt

Conferences Meetings ConferencesMeetingsGrp

Field	Value	IRS element (for citing)
Total	$115,343	TotalAmt
Program Services	$88,881	ProgramServicesAmt
Management And General	$20,322	ManagementAndGeneralAmt
Fundraising	$6,140	FundraisingAmt

Interest InterestGrp

Field	Value	IRS element (for citing)
Total	$67,546	TotalAmt
Program Services	$12,689	ProgramServicesAmt
Management And General	$54,857	ManagementAndGeneralAmt

Depreciation Depletion DepreciationDepletionGrp

Field	Value	IRS element (for citing)
Total	$9,924,991	TotalAmt
Program Services	$9,512,100	ProgramServicesAmt
Management And General	$203,896	ManagementAndGeneralAmt
Fundraising	$208,995	FundraisingAmt

Insurance InsuranceGrp

Field	Value	IRS element (for citing)
Total	$2,290,798	TotalAmt
Program Services	$36,455	ProgramServicesAmt
Management And General	$2,254,343	ManagementAndGeneralAmt

Other Expenses OtherExpensesGrp (4 entries)

DescDesc	TotalTotalAmt	Program ServicesProgramServicesAmt	Management And GeneralManagementAndGeneralAmt	FundraisingFundraisingAmt
FILM AND EXHIBIT RENTAL	$990,476	$990,476
CREDIT CARD HANDLING FE	$694,004	$598,083	$858	$95,063
TAXES	$667,509	$633,292	$34,217	$0
CATERING	$613,105	$326,536	$157,790	$128,779

All Other Expenses AllOtherExpensesGrp

Field	Value	IRS element (for citing)
Total	$622,654	TotalAmt
Program Services	$388,193	ProgramServicesAmt
Management And General	$141,172	ManagementAndGeneralAmt
Fundraising	$93,289	FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

Field	Value	IRS element (for citing)
Total	$71,038,825	TotalAmt
Program Services	$52,377,326	ProgramServicesAmt
Management And General	$12,611,847	ManagementAndGeneralAmt
Fundraising	$6,049,652	FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

Field	Value	IRS element (for citing)
BOY	$18,239,054	BOYAmt
EOY	$2,307,402	EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

Field	Value	IRS element (for citing)
BOY	$47,074,497	BOYAmt
EOY	$93,994,430	EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$110,189,018	BOYAmt
EOY	$25,874,499	EOYAmt

Accounts Receivable AccountsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$5,550,004	BOYAmt
EOY	$3,892,712	EOYAmt

Inventories For Sale Or Use InventoriesForSaleOrUseGrp

Field	Value	IRS element (for citing)
BOY	$62,061	BOYAmt
EOY	$69,642	EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

Field	Value	IRS element (for citing)
BOY	$1,754,707	BOYAmt
EOY	$2,017,072	EOYAmt

Field	Value	IRS element (for citing)
Land Bldg Equip Cost Or Other Bss	$258,434,045	LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec	$143,095,805	LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

Field	Value	IRS element (for citing)
BOY	$71,446,035	BOYAmt
EOY	$115,338,240	EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

Field	Value	IRS element (for citing)
BOY	$29,060,930	BOYAmt
EOY	$45,772,196	EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

Field	Value	IRS element (for citing)
BOY	$222,047,096	BOYAmt
EOY	$223,860,108	EOYAmt

Other Assets Total OtherAssetsTotalGrp

Field	Value	IRS element (for citing)
BOY	$7,392,910	BOYAmt
EOY	$6,800,441	EOYAmt

Total Assets TotalAssetsGrp

Field	Value	IRS element (for citing)
BOY	$512,816,312	BOYAmt
EOY	$519,926,742	EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

Field	Value	IRS element (for citing)
BOY	$13,205,239	BOYAmt
EOY	$19,013,489	EOYAmt

Deferred Revenue DeferredRevenueGrp

Field	Value	IRS element (for citing)
BOY	$3,678,728	BOYAmt
EOY	$4,682,071	EOYAmt

Mortg Notes Pybl Scrd Invst Prop MortgNotesPyblScrdInvstPropGrp

Field	Value	IRS element (for citing)
BOY	$1,710,608	BOYAmt
EOY	$1,364,170	EOYAmt

Unsecured Notes Loans Payable UnsecuredNotesLoansPayableGrp

Field	Value	IRS element (for citing)
BOY	$1,500,000	BOYAmt
EOY	$500,000	EOYAmt

Other Liabilities OtherLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$2,513,939	BOYAmt
EOY	$2,384,219	EOYAmt

Total Liabilities TotalLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$22,608,514	BOYAmt
EOY	$27,943,949	EOYAmt

Field	Value	IRS element (for citing)
Organization Follows FASB117	Yes (X)	OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$102,909,241	BOYAmt
EOY	$149,033,137	EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$387,298,557	BOYAmt
EOY	$342,949,656	EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$490,207,798	BOYAmt
EOY	$491,982,793	EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$512,816,312	BOYAmt
EOY	$519,926,742	EOYAmt

Field	Value	IRS element (for citing)
Info In Schedule O Part XI	Yes (X)	InfoInScheduleOPartXIInd
Reconcilation Revenue Expnss	-$14,547,584	ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst	$14,116,703	NetUnrlzdGainsLossesInvstAmt
Other Changes In Net Assets	$2,205,876	OtherChangesInNetAssetsAmt
Method Of Accounting Accrual	Yes (X)	MethodOfAccountingAccrualInd
Accountant Compile Or Review	0	AccountantCompileOrReviewInd
FS Audited	Yes (1)	FSAuditedInd

FS Audited Basis FSAuditedBasisGrp

Field	Value	IRS element (for citing)
Separate Basis Fincl Stmt	Yes (X)	SeparateBasisFinclStmtInd

Field	Value	IRS element (for citing)
Audit Committee	Yes (1)	AuditCommitteeInd
Federal Grant Audit Required	Yes (1)	FederalGrantAuditRequiredInd
Federal Grant Audit Performed	Yes (1)	FederalGrantAuditPerformedInd

Schedule A IRS990ScheduleA

Field	Value	IRS element (for citing)
Public Organization170	Yes (X)	PublicOrganization170Ind

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$20,121,756	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$28,240,326	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$30,533,140	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$163,862,468	CurrentTaxYearMinus1YearAmt
Current Tax Year	$16,896,964	CurrentTaxYearAmt
Total	$259,654,654	TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$20,121,756	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$28,240,326	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$30,533,140	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$163,862,468	CurrentTaxYearMinus1YearAmt
Current Tax Year	$16,896,964	CurrentTaxYearAmt
Total	$259,654,654	TotalAmt

Field	Value	IRS element (for citing)
Substantial Contributors Tot	$144,951,696	SubstantialContributorsTotAmt
Public Support Total170	$114,702,958	PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$5,430,109	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$5,630,902	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$6,758,521	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$8,630,661	CurrentTaxYearMinus1YearAmt
Current Tax Year	$9,443,165	CurrentTaxYearAmt
Total	$35,893,358	TotalAmt

Unrelated Business Net Incm170 UnrelatedBusinessNetIncm170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus3 Years	$1,131,751	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$917,124	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$1,883,117	CurrentTaxYearMinus1YearAmt
Current Tax Year	$2,181,345	CurrentTaxYearAmt
Total	$6,113,337	TotalAmt

Other Income170 OtherIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$2,738,106	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$6,044,117	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$1,698,290	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$1,655,020	CurrentTaxYearMinus1YearAmt
Current Tax Year	$618,295	CurrentTaxYearAmt
Total	$12,753,828	TotalAmt

Field	Value	IRS element (for citing)
Total Support	$314,415,177	TotalSupportAmt
Gross Receipts Rltd Activities	$128,859,672	GrossReceiptsRltdActivitiesAmt
Public Support CY170	0.36480	PublicSupportCY170Pct
Public Support PY170	0.36010	PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170	Yes (X)	ThirtyThrPctSuprtTestsCY170Ind

Form990 Schedule A Part VI Form990ScheduleAPartVIGrp

Field	Value	IRS element (for citing)
Form And Line Reference	SCHEDULE A, PART II, LINE 10 -	FormAndLineReferenceDesc
Explanation	"OTHER INCOME" INCLUDES SHIPPING CHARGES, SOUVENIR VENDING MACHINE COMMISSIONS, LOCKER RENTAL, INSURANCE COVERAGE OF LOSSES, AND OTHER MISCELLANEOUS INCOME.	ExplanationTxt

Schedule B IRS990ScheduleB

Contributor Information ContributorInformationGrp

Field	Value	IRS element (for citing)
Contributor	RESTRICTED	ContributorNum

Contributor Business Name ContributorBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	RESTRICTED	BusinessNameLine1

Contributor US Address ContributorUSAddress

Field	Value	IRS element (for citing)
Address Line1	RESTRICTED	AddressLine1
Address Line2	RESTRICTED	AddressLine2
City	RESTRICTED	City
State	RESTRICTED	State
ZIP Code	RESTRICTED	ZIPCode

Field	Value	IRS element (for citing)
Total Contributions	RESTRICTED	TotalContributionsAmt

Schedule C IRS990ScheduleC

Total Grassroots Lobbying TotalGrassrootsLobbyingGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$172,304	FilingOrganizationsTotalAmt

Total Direct Lobbying TotalDirectLobbyingGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$172,304	FilingOrganizationsTotalAmt

Total Lobbying Expend TotalLobbyingExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$344,608	FilingOrganizationsTotalAmt

Other Exempt Purpose Expend OtherExemptPurposeExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$52,375,931	FilingOrganizationsTotalAmt

Total Exempt Purpose Expend TotalExemptPurposeExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$52,720,539	FilingOrganizationsTotalAmt

Lobbying Nontaxable Amount LobbyingNontaxableAmountGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$1,000,000	FilingOrganizationsTotalAmt

Grassroots Nontaxable GrassrootsNontaxableGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$250,000	FilingOrganizationsTotalAmt

Tot Lbbyng Grassroot Mns Non Tx TotLbbyngGrassrootMnsNonTxGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$0	FilingOrganizationsTotalAmt

Tot Lbby Expend Mns Lbbyng Non Tx TotLbbyExpendMnsLbbyngNonTxGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$0	FilingOrganizationsTotalAmt

Avg Lobbying Nontaxable Amount AvgLobbyingNontaxableAmountGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$1,000,000	CurrentYearMinus3Amt
Current Year Minus2	$1,000,000	CurrentYearMinus2Amt
Current Year Minus1	$1,000,000	CurrentYearMinus1Amt
Current Year	$1,000,000	CurrentYearAmt
Total	$4,000,000	TotalAmt

Field	Value	IRS element (for citing)
Lobbying Ceiling	$6,000,000	LobbyingCeilingAmt

Avg Total Lobbying Expend AvgTotalLobbyingExpendGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$162,459	CurrentYearMinus3Amt
Current Year Minus2	$144,685	CurrentYearMinus2Amt
Current Year Minus1	$174,813	CurrentYearMinus1Amt
Current Year	$172,304	CurrentYearAmt
Total	$654,261	TotalAmt

Avg Grassroots Nontaxable AvgGrassrootsNontaxableGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$250,000	CurrentYearMinus3Amt
Current Year Minus2	$250,000	CurrentYearMinus2Amt
Current Year Minus1	$250,000	CurrentYearMinus1Amt
Current Year	$250,000	CurrentYearAmt
Total	$1,000,000	TotalAmt

Field	Value	IRS element (for citing)
Grassroots Ceiling	$1,500,000	GrassrootsCeilingAmt

Avg Grassroots Lobbying Expend AvgGrassrootsLobbyingExpendGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$2,084	CurrentYearMinus3Amt
Current Year Minus1	$9,451	CurrentYearMinus1Amt
Current Year	$172,304	CurrentYearAmt
Total	$183,839	TotalAmt

Schedule D IRS990ScheduleD

Field	Value	IRS element (for citing)
Collection Used Pub Exhibition	Yes (X)	CollectionUsedPubExhibitionInd
Coll Used Scholarly Rsrch	Yes (X)	CollUsedScholarlyRsrchInd
Collection Used Preservation	Yes (X)	CollectionUsedPreservationInd
Solicited Assets Sale	0	SolicitedAssetsSaleInd

CY Endwmt Fund CYEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$213,841,249	BeginningYearBalanceAmt
Contributions	$816,911	ContributionsAmt
Investment Earnings Or Losses	$21,808,241	InvestmentEarningsOrLossesAmt
Other Expenditures	$9,559,628	OtherExpendituresAmt
Administrative Expenses	$2,963,339	AdministrativeExpensesAmt
End Year Balance	$223,943,434	EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$206,723,745	BeginningYearBalanceAmt
Contributions	$1,261,708	ContributionsAmt
Investment Earnings Or Losses	$17,880,371	InvestmentEarningsOrLossesAmt
Other Expenditures	$8,870,177	OtherExpendituresAmt
Administrative Expenses	$3,154,398	AdministrativeExpensesAmt
End Year Balance	$213,841,249	EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$200,615,264	BeginningYearBalanceAmt
Contributions	$1,370,694	ContributionsAmt
Investment Earnings Or Losses	$15,244,245	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$78,952	GrantsOrScholarshipsAmt
Other Expenditures	$8,405,481	OtherExpendituresAmt
Administrative Expenses	$2,022,025	AdministrativeExpensesAmt
End Year Balance	$206,723,745	EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$214,021,246	BeginningYearBalanceAmt
Contributions	$2,490,864	ContributionsAmt
Investment Earnings Or Losses	-$5,361,010	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$50,623	GrantsOrScholarshipsAmt
Other Expenditures	$7,760,826	OtherExpendituresAmt
Administrative Expenses	$2,724,387	AdministrativeExpensesAmt
End Year Balance	$200,615,264	EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$167,222,800	BeginningYearBalanceAmt
Contributions	$952,596	ContributionsAmt
Investment Earnings Or Losses	$57,295,054	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	-$6,613	GrantsOrScholarshipsAmt
Other Expenditures	$7,273,266	OtherExpendituresAmt
Administrative Expenses	$4,182,101	AdministrativeExpensesAmt
End Year Balance	$214,021,696	EndYearBalanceAmt

Field	Value	IRS element (for citing)
Board Designated Balance EOY	0.07200	BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY	0.41500	PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY	0.51300	TermEndowmentBalanceEOYPct
Endowments Held Unrelated Org	0	EndowmentsHeldUnrelatedOrgInd
Endowments Held Related Org	0	EndowmentsHeldRelatedOrgInd

Land LandGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$114,102	OtherCostOrOtherBasisAmt
Book Value	$114,102	BookValueAmt

Buildings BuildingsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$160,440,274	OtherCostOrOtherBasisAmt
Depreciation	$74,733,436	DepreciationAmt
Book Value	$85,706,838	BookValueAmt

Equipment EquipmentGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$39,711,468	OtherCostOrOtherBasisAmt
Depreciation	$28,308,035	DepreciationAmt
Book Value	$11,403,433	BookValueAmt

Other Land Buildings OtherLandBuildingsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$58,168,201	OtherCostOrOtherBasisAmt
Depreciation	$40,054,334	DepreciationAmt
Book Value	$18,113,867	BookValueAmt

Field	Value	IRS element (for citing)
Total Book Value Land Buildings	$115,338,240	TotalBookValueLandBuildingsAmt

Closely Held Equity Interests CloselyHeldEquityInterestsGrp

Field	Value	IRS element (for citing)
Book Value	$70,942,958	BookValueAmt
Method Valuation	F	MethodValuationCd

Other Securities OtherSecuritiesGrp (5 entries)

DescDesc	Book ValueBookValueAmt	Method ValuationMethodValuationCd
COMMINGLED TRUST FUNDS	$20,252,595	F
HEDGE FUNDS	$78,659,486	F
OTHER ALTERNATIVE INVESTMENTS	$29,303,623	F
SPLIT INTERESTS & OTHER	$22,701,446	F
ETF	$2,000,000	F

Field	Value	IRS element (for citing)
Total Book Value Securities	$223,860,108	TotalBookValueSecuritiesAmt

Other Liabilities Org OtherLiabilitiesOrgGrp (6 entries)

DescDesc	AmtAmt
EMPLOYER SHARE OF FICA AND OTHER PAYROLL ITEMS	$24,919
REFUNDS/CREDITS DUE	$9,629
MISCELLANEOUS SUSPENSE	$18,146
LIABILITIES ASSOC W/SPLIT INTEREST AGREEMENTS	$645,436
ASSET RETIREMENT OBLIGATION (ASC 410)	$1,720,499
OTHER L/T LIABILITIES	-$34,410

Field	Value	IRS element (for citing)
Total Liability	$2,384,219	TotalLiabilityAmt
Footnote Text	Yes (X)	FootnoteTextInd
Total Rev Etc Audited Fincl Stmt	$74,628,722	TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst	$14,116,703	NetUnrealizedGainsInvstAmt
Donated Services And Use Fclts	$2,106,731	DonatedServicesAndUseFcltsAmt
Other Revenue	$2,206,128	OtherRevenueAmt
Revenue Not Reported	$18,429,562	RevenueNotReportedAmt
Revenue Subtotal	$56,199,160	RevenueSubtotalAmt
Investment Expenses Not Incld	$2,963,339	InvestmentExpensesNotIncldAmt
Other Revenues Not Included	-$2,671,258	OtherRevenuesNotIncludedAmt
Revenue Not Reported Fincl Stmt	$292,081	RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990	$56,491,241	TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt	$72,855,824	TotExpnsEtcAuditedFinclStmtAmt
Donated Services Use Fclts	$2,106,731	DonatedServicesUseFcltsAmt
Other Expenses Included	$2,673,607	OtherExpensesIncludedAmt
Expenses Not Reported	$4,780,338	ExpensesNotReportedAmt
Expenses Subtotal	$68,075,486	ExpensesSubtotalAmt
Investment Expenses Not Incld2	$2,963,339	InvestmentExpensesNotIncld2Amt
Expenses Not Rpt Fincl Stmt	$2,963,339	ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990	$71,038,825	TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (7 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
PART III, LINE 1A:	COLLECTIONS FOOTNOTE: THE MUSEUM'S COLLECTIONS CONSIST OF APPROXIMATELY 30,000 ARTIFACTS USED PRIMARILY FOR EDUCATIONAL ACTIVITIES, ENCOMPASSING INTERPRETATIONS, DISCOVERY SPACES, EXHIBITS, LECTURES, CLASSES, DEMONSTRATIONS, REFERENCE SERVICES, OR OTHER PROGRAMS. THE MUSEUM ALSO HAS A HISTORICAL AND ARCHIVAL COLLECTION THAT DOCUMENTS THE HISTORY OF THE INSTITUTION. THE COMPOSITION OF THE MUSEUM'S COLLECTIONS BY ARTIFACT TYPE IS AS FOLLOWS: NATURAL SCIENCES 20,000 ITEMS; CULTURAL/PHYSICAL SCIENCE 5,000 ITEMS; ARTWORK 2,000 ITEMS; INSTITUTIONAL HISTORY 3,000 ITEMS; ARCHIVES 1,100 LINEAR FEET. THE MUSEUM'S COLLECTIONS MANAGEMENT POLICY STIPULATES THAT THE MUSEUM WILL ONLY ACQUIRE OBJECTS USEFUL IN FULFILLING THE EDUCATIONAL PURPOSE STATED IN ITS MISSION. THE MUSEUM ACCEPTS ONLY THOSE OBJECTS THAT CAN BE IMMEDIATELY PUT ON DISPLAY IN AN EXHIBIT, USED IN EDUCATIONAL PROGRAMS, OR USED IN FUTURE PROGRAMMING. ITEMS MAY BE DE-ACCESSIONED FROM THE COLLECTIONS IF THEY ARE DETERMINED TO BE NO LONGER USEFUL OR RELEVANT IN ASSISTING THE MUSEUM IN FULFILLING ITS MISSION. CONSISTENT WITH THE AMERICAN ALLIANCE OF MUSEUMS' CODE OF ETHICS, MUSEUM POLICY SPECIFIES THAT PROCEEDS FROM THE DE-ACCESSIONING OF AN ITEM MAY ONLY BE USED FOR THE CONSERVATION OR ACQUISITION OF OTHER COLLECTIONS ITEMS. IN ACCORDANCE WITH CURRENT PRACTICE GENERALLY FOLLOWED BY MUSEUMS, COLLECTIONS ARE NOT RECORDED AS ASSETS IN THE ACCOMPANYING FINANCIAL STATEMENTS. PURCHASED ADDITIONS TO THE COLLECTIONS ARE RECORDED AS EXPENSES AT THE TIME ACQUIRED. ALTHOUGH ARTIFACTS FROM THE COLLECTIONS MAY FROM TIME TO TIME BE INCORPORATED INTO EXHIBITS, THE MUSEUM'S EXHIBITS THEMSELVES ARE NOT CONSIDERED PART OF ITS COLLECTIONS AND MAY BE CAPITALIZED UNDER THE MUSEUM'S PROPERTY, PLANT, AND EQUIPMENT POLICIES. HOWEVER, ARTIFACTS AND ARTWORKS WITH A VALUE OF $250,000 OR GREATER ACQUIRED SPECIFICALLY FOR INCORPORATION INTO AN EXHIBIT AND CAPITALIZED AS PART OF THAT EXHIBIT MAY BE FORMALLY ACCESSIONED INTO THE MUSEUM'S COLLECTIONS IN ORDER TO BE AFFORDED THE PROTECTIONS OF THE MUSEUM'S COLLECTIONS MANAGEMENT POLICY.
PART III, LINE 4:	THE MUSEUM'S COLLECTIONS ARE USED PRIMARILY FOR EDUCATIONAL ACTIVITIES, ENCOMPASSING INTERERETATIONS, DISCOVERY SPACES, EXHIBITS, LECTURES, CLASSES, DEMONSTRATIONS, REFERENCE SERVICE, OR OTHER PROGRAMS. THE MUSEUM ALSO HAS A HISTORICAL AND ARCHIVAL COLLECTION THAT DOCUMENTS THE IMPORTANT AND RICH HISTORY OF THE INSTITUTION. THE COLLECTIONS DEPARTMENT PROVIDES PROFESSIONAL STEWARDSHIP FOR ARTIFACTS THAT ARE TEMPORARILY IN THE CUSTODY OF THE MUSEUM THROUGH LOANS AND/OR TEMPORARY EXHIBITIONS. COLLECTIONS CONSIST OF: NATURAL SCIENCES - 20,000 ITEMS; CULTURAL/PHYSICAL SCIENCE - 5,000 ITEMS; ARTWORK - 2,000 ITEMS; INSTITUTIONAL HISTORY- 3,000 ITEMS; ARCHIVES - 1,100 LINEAR FEET. LIVING COLLECTIONS INCLUDE APPROXIMATELY 250 INDIVDUAL ANIMALS AND/OR COLONIES REPRESENTING 150 SPECIES EITHER ON ONGOING EXHIBIT OR USED IN PERIODIC EDUCATIONAL DEMONSTRATIONS. THE MUSEUM ALSO PARTICIPATES IN ENDANGERED SPECIES BREEDING AND CARE OF INJURED ANIMALS WHICH CANNOT BE RE-RELEASED INTO THE WILD.
PART V, LINE 4:	THE MUSEUM'S ENDOWMENT INCLUDES BOTH DONOR-RESTRICTED ENDOWMENT FUNDS AND FUNDS DESIGNATED BY THE BOARD OF TRUSTEES TO FUNCTION AS ENDOWMENTS ("QUASI-ENDOWMENTS"). THE ENDOWMENT CONSISTS OF 119 INDIVIDUAL DONOR RESTRICTED FUNDS AND 25 QUASI-ENDOWMENT FUNDS USED FOR A VARIETY OF PURPOSES. THESE USES (AS % OF TOTAL VALUE) INCLUDE: UNRESTRICTED/GENERAL OPERATIONS - 18%, EXHIBIT CONSTRUCTION AND MAINTENANCE - 26%, PROGRAM SUPPORT - 36%, MIXED USE (PRIMARILY EXHIBITS AND PROGRAMS JOINTLY) - 13%, OTHER (INCLUDING LIBRARY, ACCESS, AND INTERNSHIPS) -8%.
PART X, LINE 2:	THE MUSEUM'S FOOTNOTE DISCLOSURE WITH RESPECT TO FIN 48 IS AS FOLLOWS: THE MUSEUM IS EXEMPT FROM INCOME TAXATION ON ACTIVITIES RELATED TO ITS CHARITABLE PURPOSES UNDER THE PROVISIONS OF SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS QUALIFIED TO RECEIVE TAX-DEDUCTIBLE GIFTS AND BEQUESTS UNDER THE U.S. TAX CODE. THE MUSEUM IS SUBIECT TO TAX ON INCOME FROM ANY BUSINESS IT CONDUCTS WHICH IS UNRELATED TO ITS CHARITABLE PURPOSES. THESE ACTIVITIES GENERALLY INCLUDE EVENT AND CONFERENCE SERVICES REVENUE FOR EVENTS OF A PURELY SOCIAL NATURE, RENTAL INCOME FROM PARKING SPACES IN THE MUSEUM'S GARAGE, INVESTMENT INCOME FROM CERTAIN ENDOWMENT INVESTMENTS, AND TICKET INCOME FROM NON-SCIENTIFIC OFFERINGS IN THE MUSEUM'S PLANETARIUM AND OMNI THEATER. THE MUSEUM ACCOUNTS FOR THE EFFECT OF ANY UNCERTAIN TAX POSITIONS ON THE BASIS OF WHETHER IT IS MORE LIKELY THAN NOT THAT POSITIONS TAKEN, OR EXPECTED TO BE TAKEN, IN A TAX RETURN WILL BE SUSTAINED UPON EXAMINATION BY THE RELEVANT TAXING AUTHORITY. IF A TAX POSITION OR POSITIONS ARE DEEMED TO RESULT IN UNCERTAINTIES OF THOSE POSITIONS, THE UNRECOGNIZED TAX BENEFIT IS ESTIMATED BASED ON A "CUMULATIVE PROBABILITY ASSESSMENT" THAT AGGREGATES THE ESTIMATED LIABILITY FOR ALL UNCERTAIN TAX POSITIONS. THE MUSEUM CONSIDERS ITS STATUS AS A TAX-EXEMPT ENTITY AND THE DETERMINATION OF INCOME AS RELATED OR UNRELATED TO ITS EXEMPT PURPOSE TO BE ITS ONLY SIGNIFICANT INCOME TAX POSITIONS, AND HAS DETERMINED THAT SUCH POSITIONS DO NOT RESULT IN AN UNCERTAINTY REQUIRING RECOGNITION. THE MUSEUM IS NOT CURRENTLY UNDER INCOME TAX EXAMINATION BY ANY JURISDICTION. THE MUSEUM'S FEDERAL AND STATE TAX RETURNS ARE GENERALLY OPEN FOR EXAMINATION FOR THREE YEARS FOLLOWING THE DATE FILED. THE MUSEUM IS ALSO RESPONSIBLE FOR CALCULATING, COLLECTING, AND REMITTING OTHER TAXES THAT ARE OTHER THAN BASED ON INCOME.
PART XI, LINE 2D - OTHER ADJUSTMENTS:	AMORTIZATION OF LIABILITY 296,712. CHANGE IN VALUE OF SPLIT INTERESTS 1,909,416.
PART XI, LINE 4B - OTHER ADJUSTMENTS:	FUNDRAISING EXPENSES ON LINE 8B -777,916. COST OF GOODS SOLD ON LINE 10B -1,895,345. ROUNDING VARIANCES 2,003.
PART XII, LINE 2D - OTHER ADJUSTMENTS:	FUNDRAISING EXPENSES ON LINE 8B 777,916. COST OF GOODS SOLD ON LINE 10B 1,895,345. ROUNDING VARIANCES 346.

Schedule F IRS990ScheduleF

Account Activities Outside US AccountActivitiesOutsideUSGrp (4 entries)

RegionRegionTxt	Type Of Activities ConductedTypeOfActivitiesConductedTxt	Specific Services ProvidedSpecificServicesProvidedTxt	Region Total ExpendituresRegionTotalExpendituresAmt
EUROPE (INCLUDING ICELAND & GREENLAND)	PROGRAM SERVICES	SUPPORT FOR TRAVELING EXHIBIT	$110,681
CENTRAL AMERICA AND THE CARIBBEAN	INVESTMENTS		$45,056,498
EUROPE (INCLUDING ICELAND & GREENLAND)	INVESTMENTS		$10,055,326
EUROPE (INCLUDING ICELAND & GREENLAND)	PROGRAM SERVICES	TRAVEL TO CONFS & PEER INSTITUTIONS	$46,002

Field	Value	IRS element (for citing)
Subtotal Offices	0	SubtotalOfficesCnt
Subtotal Employees	0	SubtotalEmployeesCnt
Continuation Total Office	0	ContinuationTotalOfficeCnt
Continuation Total Employee	0	ContinuationTotalEmployeeCnt
Total Office	0	TotalOfficeCnt
Total Employee	0	TotalEmployeeCnt
Subtotal Spent	$55,268,507	SubtotalSpentAmt
Continuation Spent	$0	ContinuationSpentAmt
Total Spent	$55,268,507	TotalSpentAmt
Transfer To Foreign Corp	Yes (1)	TransferToForeignCorpInd
Interest In Foreign Trust	0	InterestInForeignTrustInd
Foreign Corp Ownership	Yes (1)	ForeignCorpOwnershipInd
Passive Foreign Investmest Co	Yes (1)	PassiveForeignInvestmestCoInd
Foreign Partnership	Yes (1)	ForeignPartnershipInd
Boycott Countries	0	BoycottCountriesInd

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	SCHEDULE F, PART L, LINE 3	FormAndLineReferenceDesc
Explanation	PROGRAM SERVICES - SUPPORT FOR TRAVELING EXHIBIT: THE MUSEUM HAS DEVELOPED THE SCIENCE OF PIXAR TRAVELING EXHIBITION, AND IS TOURING TWO COPIES, ONE WITHIN THE US AND ONE INTERNATIONALLY. MUSEUM STAFF AND CONTRACTORS TRAVEL TO HOST SITES FOR EXHIBIT INSTALLATION, MAINTENANCE, AND DE-INSTALLATION AS THE EXHIBIT MOVES FROM SITE TO SITE. COST REPORTED HERE ALSO INCLUDE MAINTENANCE AND OTHER ACTIVITIES CONDUCTED WITHIN THE US IN SUPPORT OF THE INTERNATIONAL TOUR. PROGRAM SERVICES- TRAVEL TO CONFERENCES & PEER INSTITUTIONS: (STAFF PROFESSIONAL DEVELOPMENT AND PROGRAM DISSEMINATION): AS THE MUSEUM EXPANDS ITS PROGRAMMING INTERNATIONALLY, STAFF ARE INCREASINGLY CALLED UPON TO TRAVEL TO MEETINGS AND CONFERENCES IN OTHER COUNTRIES, AND TO VISIT PEER INSTITUTIONS TO REVIEW PROGRAMS AND EXHIBITS WHICH MAY POTENTIALLY INFORM THE MUSEUM'S OWN OFFERINGS. STAFF ALSO INTRODUCE OTHER INSTITUTIONS TO PROGRAMS AND MATERIALS THE MUSEUM HAS DEVELOPED. FINALLY, STAFF MAY TRAVEL INTERNATIONALLY TO PERFORM RESEARCH TO INFORM THE CONTENT OF EXHIBITS IN DEVELOPMENT OR TO MEET WITH NON-US EXHIBIT DEVELOPERS AND FABRICATORS. COSTS ASSOCIATED WITH SUCH TRAVEL ARE ACCOUNTED FOR UNDER THE SAME ACCOUNTABLE PLAN AS THE MUSEUM'S DOMESTIC TRAVEL. PROGRAM SERVICES- MEETINGS WITH VENDORS: MUSEUM STAFF SOMETIMES TRAVELS TO CONSULT WITH NON-US-BASED VENDORS.	ExplanationTxt

Schedule G IRS990ScheduleG

Field	Value	IRS element (for citing)
Mail Solicitations	Yes (X)	MailSolicitationsInd
Email Solicitations	Yes (X)	EmailSolicitationsInd
Phone Solicitations	Yes (X)	PhoneSolicitationsInd
In Person Solicitations	Yes (X)	InPersonSolicitationsInd
Solicitation Of Non Govt Grants	Yes (X)	SolicitationOfNonGovtGrantsInd
Solicitation Of Govt Grants	Yes (X)	SolicitationOfGovtGrantsInd
Special Fundraising Events	Yes (X)	SpecialFundraisingEventsInd
Agrmt Prof Fundraising Acty	Yes (1)	AgrmtProfFundraisingActyInd

Fundraiser Activity Info FundraiserActivityInfoGrp (3 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	ActivityActivityTxt	Fundraiser Control Of FundsFundraiserControlOfFundsInd	Gross ReceiptsGrossReceiptsAmt	Retained By ContractorRetainedByContractorAmt	Net To OrganizationNetToOrganizationAmt
BAKER & HILL
1320 W CITY CENTER DR SUITE 300	CARMEL	IN	46032	DIRECT MAIL/E-MAIL	0	$0	$33,280	$0
BCG CONNECT
ONE JEWEL DRIVE SUITE 105	WILMINGTON	MA	01887	DIRECT MAIL/E-MAIL	0	$0	$15,215	$0
M&R STRATEGIC SERVIC
1101 CONNECTICUT AVE NW 7TH FLOOR	WASHINGTON	DC	20036	DIRECT MAIL/E-MAIL	0	$0	$204,570	$0

Field	Value	IRS element (for citing)
Total Retained By Contractors	$253,065	TotalRetainedByContractorsAmt
Licensed States	AL	LicensedStatesCd
Licensed States	AK	LicensedStatesCd
Licensed States	AZ	LicensedStatesCd
Licensed States	AR	LicensedStatesCd
Licensed States	CA	LicensedStatesCd
Licensed States	CO	LicensedStatesCd
Licensed States	CT	LicensedStatesCd
Licensed States	DE	LicensedStatesCd
Licensed States	FL	LicensedStatesCd
Licensed States	GA	LicensedStatesCd
Licensed States	HI	LicensedStatesCd
Licensed States	ID	LicensedStatesCd
Licensed States	IL	LicensedStatesCd
Licensed States	IN	LicensedStatesCd
Licensed States	IA	LicensedStatesCd
Licensed States	KS	LicensedStatesCd
Licensed States	KY	LicensedStatesCd
Licensed States	LA	LicensedStatesCd
Licensed States	ME	LicensedStatesCd
Licensed States	MD	LicensedStatesCd
Licensed States	MA	LicensedStatesCd
Licensed States	MI	LicensedStatesCd
Licensed States	MN	LicensedStatesCd
Licensed States	MS	LicensedStatesCd
Licensed States	MO	LicensedStatesCd
Licensed States	MT	LicensedStatesCd
Licensed States	NE	LicensedStatesCd
Licensed States	NV	LicensedStatesCd
Licensed States	NH	LicensedStatesCd
Licensed States	NJ	LicensedStatesCd
Licensed States	NM	LicensedStatesCd
Licensed States	NY	LicensedStatesCd
Licensed States	NC	LicensedStatesCd
Licensed States	ND	LicensedStatesCd
Licensed States	OH	LicensedStatesCd
Licensed States	OK	LicensedStatesCd
Licensed States	OR	LicensedStatesCd
Licensed States	PA	LicensedStatesCd
Licensed States	RI	LicensedStatesCd
Licensed States	SC	LicensedStatesCd
Licensed States	SD	LicensedStatesCd
Licensed States	TN	LicensedStatesCd
Licensed States	TX	LicensedStatesCd
Licensed States	UT	LicensedStatesCd
Licensed States	VT	LicensedStatesCd
Licensed States	VA	LicensedStatesCd
Licensed States	WA	LicensedStatesCd
Licensed States	WV	LicensedStatesCd
Licensed States	WI	LicensedStatesCd
Licensed States	WY	LicensedStatesCd
Licensed States	AS	LicensedStatesCd
Licensed States	DC	LicensedStatesCd

Fundraising Event Information FundraisingEventInformationGrp

Field	Value	IRS element (for citing)
Event1	GALA	Event1Nm
Gross Receipts Event1	$1,179,544	GrossReceiptsEvent1Amt
Charitable Contri Event1	$1,179,544	CharitableContriEvent1Amt
Food And Beverage Event1	$137,843	FoodAndBeverageEvent1Amt
Entertainment Event1	$17,690	EntertainmentEvent1Amt
Other Direct Expenses Event1	$465,870	OtherDirectExpensesEvent1Amt
Event2	WASHBURN CLIMB	Event2Nm
Gross Receipts Event2	$120,000	GrossReceiptsEvent2Amt
Charitable Contri Event2	$120,000	CharitableContriEvent2Amt
Other Events Total	1	OtherEventsTotalCnt
Gross Receipts Other Events	$1,400	GrossReceiptsOtherEventsAmt
Gross Revenue Other Events	$1,400	GrossRevenueOtherEventsAmt
Food And Beverage Other Events	$74,384	FoodAndBeverageOtherEventsAmt
Entertainment Other Events	$750	EntertainmentOtherEventsAmt
Oth Direct Expnss Other Events	$81,379	OthDirectExpnssOtherEventsAmt
Gross Receipts Total	$1,300,944	GrossReceiptsTotalAmt
Charitable Contributions Tot	$1,299,544	CharitableContributionsTotAmt
Gross Revenue Total Events	$1,400	GrossRevenueTotalEventsAmt
Food And Beverage Total Events	$212,227	FoodAndBeverageTotalEventsAmt
Entertainment Total Events	$18,440	EntertainmentTotalEventsAmt
Oth Direct Expnss Total Events	$547,249	OthDirectExpnssTotalEventsAmt
Direct Expense Summary Events	$777,916	DirectExpenseSummaryEventsAmt
Net Income Summary	-$776,516	NetIncomeSummaryAmt

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	SCHEDULE G, PART I, LINE 2B, COLUMN (V)	FormAndLineReferenceDesc
Explanation	THE MUSEUM'S USE OF EXTERNAL FUNDRAISERS MAY, IN ANY GIVEN YEAR, CONSIST OF A) GENERAL FUNDRAISING COUNSEL, WHOSE WORK IS GENERALLY TOO INTEGRATED INTO THE MUSEUM'S OVERALL ADVANCEMENT FUNCTION TO HAVE "GROSS RECEIPTS" AMUNTS SPECIFICALLY ASSIGNED ; B) DIRECT-MAIL COMPANIES, WHOSE WORK RANGES FROM SIMPLE LARGE-SCALE MAILING OF MATERIALS DEVELOPED AND PRODUCED BY THE MUSEUM ITSELF TO A MORE DIRECT INVOLVEMENT IN THE DESIGN AND CREATION OF THE SOLICITATION MATERIALS; AND C) TELEMARKETERS/TEXT-MESSAGERS. AGREEMENTS WITH OUTSIDE FUNDRAISERS GENERALLY PROVIDE FOR INVOICING OF THE MUSEUM BASED ON SOLICITAITONS MADE, RATHER THAN WITHHOLDING OF AMOUNTS FROM FUNDS RAISED. EXCEPTIONS OCCUR WHEN THE FUNDRAISER PROVIDEDS A WEB PORTAL FOR DONORS, IN WHICH CASE A FEE IS WITHHELD FROM THE DONATION AND THE PROCEEDS FORWARDED TO THE MUSEUM.	ExplanationTxt

Schedule I IRS990ScheduleI

Field	Value	IRS element (for citing)
Grant Records Maintained	Yes (1)	GrantRecordsMaintainedInd

Recipient Table RecipientTable (2 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	Recipient EINRecipientEIN	IRC SectionIRCSectionDesc	Cash GrantCashGrantAmt	Non Cash AssistanceNonCashAssistanceAmt	Purpose Of GrantPurposeOfGrantTxt	Address Line2USAddress/AddressLine2Txt
MUSEUM OF LIFE & SCIENCE
433 W MURRAY AVE	DURHAM	NC	27704	560938434	501(C)(3)	$28,099	$0	FED'L SUBAWARDS: BUILDING CAPACITY FOR CO-CREATED PUBLIC ENGAGEMENT W/SCI., CITIZEN SCI, CIVICS, AND RESILIENT COMMUNITIES
LOUISIANA STATE UNIVERSITY & AGRICULTURE & MECHANICAL COLLEGE
ACCOUNTING SERVICES 204 THOMAS BOYD	BATON ROUGE	LA	70803	726000848	GOVT	$28,690	$0	GRANTS	HALL

Field	Value	IRS element (for citing)
Total501c3 Org	2	Total501c3OrgCnt
Total Other Org	0	TotalOtherOrgCnt

Grants Other Asst To Indiv In US GrantsOtherAsstToIndivInUSGrp (4 entries)

Grant TypeGrantTypeTxt	RecipientRecipientCnt	Non Cash AssistanceNonCashAssistanceAmt	Valuation Method UsedValuationMethodUsedDesc	Non Cash AssistanceNonCashAssistanceDesc	Cash GrantCashGrantAmt
ADMISSION FEE WAIVERS	13653	$11,954	RETAIL PRICE	FEE WAIVER
TEACHER AND OTHER STIPENDS	266				$7,000
HUMAN SUBIECT COMPENSATION	707				$17,672
PRIZES AND AWARDS					$8,200

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	PART I, LINE 2:	FormAndLineReferenceDesc
Explanation	CASH GRANTS: THE MUSEUM'S CASH AWARDS FALL INTO THREE CATEGORIES. A) SUBAWARDS UNDER GRANTS - THESE ARE MONIES PASSED THROUGH TO INSTITUTIONS WHO HAVE APPLIED FOR GOVERNMENT AND PRIVATE GRANTS JOINTLY WITH THE MUSEUM. THE MUSEUM MONITORS THE SUBAWARDEES' USE OF FUNDS IN ACCORDANCE WITH THE REGULATIONS GOVERNING SUCH GRANTS AND THE ADEQUACY OF THIS MONITORING IS AUDITED ANNUALLY UNDER THE PROVISIONS OF 2 CFR 200. B) PRIZES AND AWARDS - THE MUSEUM ADMINISTERS TWO MAJOR ANNUAL AWARDS FOR THE RECOGNITION OF SCIENTIFIC PUBLICATION AND COMMUNICATION. THE MUSEUM ALSO HOSTS REFEREED STUDENT COMPETITIONS FOR WHICH CASH PRIZES ARE AWARDED. AS ALL THESE AWARDS ARE HONORARIA, MONITORING OF THEIR USE IS NOT APPLICABLE. C) STIPENDS - THESE ARE PAYMENTS TO PARTICIPANTS IN PROFESSIONAL DEVELOPMENT WORKSHOPS OFFERED BY THE MUSEUM, OR IN PILOT TESTING OF MUSEUM PRODUCTS AND PROGRAMS. AS THESE PAYMENTS ARE SIMPLE FLAT STIPENDS BASED ON NUMBER OF WORKSHOP DAYS, OR ON PILOT TEST MILESTONES, MONITORING OF THEIR USE IS NOT APPLICABLE. NON-CASH GRANTS: THE MUSEUM ALSO PROVIDES SUBSTANTIAL NON-CASH "SCHOLARSHIPS" FOR REDUCED-FEE OR NO-FEE PARTICIPATION IN MUSEUM PROGRAMS FOR WHICH A FEE IS USUALLY CHARGED. FOR THESE TRANSACTIONS, NO FUNDS ARE DISBURSED TO THE GRANTEE; THEY ARE SIMPLY CHARGED LESS, OR NOT AT ALL, FOR THE PROGRAM ATTENDED. ELIGIBILITY IS DETERMINED IN A NUMBER OF WAYS, DEPENDING ON THE NATURE OF THE GRANTEE. SCHOOLS ARE EVALUATED BASED ON LOCATION IN UNDER-SERVED NEIGHBORHOODS OR BY PERCENTAGE OF FREE/REDUCED LUNCH PROGRAM STUDENTS. COMMUNITY GROUPS ARE EVALUATED ON THE BASIS OF CHARITABLE STATUS. INDIVIDUAL GRANTEES ARE EVALUATED ON THE BASIS OF INCOME OR RESIDENCE IN UNDER-SERVED AREAS. AS THE OPERATION OF THESE NON-CASH AWARDS IS ENTIRELY INTERNAL TO THE MUSEUM, MONITORING THE USE OF THE FUNDS IS ALSO ENTIRELY INTERNAL AND ACCOMPLISHED THROUGH THE MUSEUM'S OWN ACCOUNTING SYSTEM.	ExplanationTxt

Schedule J IRS990ScheduleJ

Field	Value	IRS element (for citing)
Compensation Committee	Yes (X)	CompensationCommitteeInd
Independent Consultant	Yes (X)	IndependentConsultantInd
Form990 Of Other Organizations	Yes (X)	Form990OfOtherOrganizationsInd
Written Employment Contract	Yes (X)	WrittenEmploymentContractInd
Compensation Survey	Yes (X)	CompensationSurveyInd
Board Or Committee Approval	Yes (X)	BoardOrCommitteeApprovalInd
Severance Payment	Yes (1)	SeverancePaymentInd
Supplemental Nonqual Rtr Plan	0	SupplementalNonqualRtrPlanInd
Equity Based Comp Arrngm	0	EquityBasedCompArrngmInd
Comp Based On Revenue Of Flng Org	0	CompBasedOnRevenueOfFlngOrgInd
Comp Bsd On Rev Related Orgs	0	CompBsdOnRevRelatedOrgsInd
Comp Bsd Net Earns Flng Org	0	CompBsdNetEarnsFlngOrgInd
Comp Bsd Net Earns Rltd Orgs	0	CompBsdNetEarnsRltdOrgsInd
Any Non Fixed Payments	Yes (1)	AnyNonFixedPaymentsInd
Initial Contract Exception	0	InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp (15 entries)

TitleTitleTxt	Base Compensation Filing OrgBaseCompensationFilingOrgAmt	Compensation Based On Rltd OrgsCompensationBasedOnRltdOrgsAmt	Bonus Filing OrganizationBonusFilingOrganizationAmount	Bonus Related OrganizationsBonusRelatedOrganizationsAmt	Other Compensation Filing OrgOtherCompensationFilingOrgAmt	Other Compensation Rltd OrgsOtherCompensationRltdOrgsAmt	Deferred Compensation Flng OrgDeferredCompensationFlngOrgAmt	Deferred Comp Rltd OrgsDeferredCompRltdOrgsAmt	Nontaxable Benefits Filing OrgNontaxableBenefitsFilingOrgAmt	Nontaxable Benefits Rltd OrgsNontaxableBenefitsRltdOrgsAmt	Total Compensation Filing OrgTotalCompensationFilingOrgAmt	Total Compensation Rltd OrgsTotalCompensationRltdOrgsAmt	Comp Report Prior990 Filing OrgCompReportPrior990FilingOrgAmt	Comp Report Prior990 Rltd OrgsCompReportPrior990RltdOrgsAmt
TIMOTHY RITCHIE
PRESIDENT	$455,453	$0	$50,000	$0	$3,208	$0	$20,700	$0	$603	$0	$529,964	$0	$0	$0
TODD SPERRY
CHIEF MARKETING OFFICER	$308,455	$0	$0	$0	$721	$0	$20,709	$0	$126	$0	$330,011	$0	$0	$0
SEVERINE J IMBERT DE SMIRNOFF
CHIEF OF STRATEGIC INITIATIVES	$269,416	$0	$0	$0	$20,939	$0	$17,042	$0	$20,600	$0	$327,997	$0	$0	$0
MIRIAM KRONBERG
FMR. CHIEF OF FINANCE (UNTIL 1/24)	$37,126	$0	$0	$0	$271,245	$0	$569	$0	$1,200	$0	$310,140	$0	$0	$0
CHRISTINE M CUNNINGHAM
CHIEF OF LEARNING	$288,943	$0	$0	$0	$0	$0	$20,237	$0	$0	$0	$309,180	$0	$0	$0
YASMINA M BLAISE
CHIEF FINANCIAL OFFICER	$283,100	$0	$0	$0	$251	$0	$15,865	$0	$0	$0	$299,216	$0	$0	$0
THOMAS A CATALINI
AVP, IT	$226,860	$0	$0	$0	$911	$0	$13,589	$0	$1,869	$0	$243,229	$0	$0	$0
PAUL J IPPOLITO
SVP, FINANCE AND BUILDING OPERATIONS	$210,151	$0	$0	$0	$839	$0	$15,680	$0	$14,174	$0	$240,844	$0	$0	$0
TIMOTHY J PORTER
SVP EXHIBITS, RESEARCH, AND COLLECTI	$206,141	$0	$0	$0	$430	$0	$15,442	$0	$1,995	$0	$224,008	$0	$0	$0
ROBERT K MOHLER
CHIEF ADVANCEMENT OFFICER	$212,500	$0	$0	$0	$216	$0	$2,063	$0	$0	$0	$214,779	$0	$0	$0
LYDIA A BEALL
SVP, PACE	$188,568	$0	$0	$0	$169	$0	$9,885	$0	$14,203	$0	$212,825	$0	$0	$0
INSOO HYUN
DIRECTOR OF CENTER FOR LIFE SCIENCES	$174,693	$0	$0	$0	$384	$0	$10,615	$0	$23,168	$0	$208,860	$0	$0	$0
KARA J PETERSON
SR DIRECTOR MARKETING	$172,851	$0	$0	$0	$369	$0	$11,067	$0	$24,423	$0	$208,710	$0	$0	$0
RACHEL T DEMASTER
DIRECTOR OF ADVANCEMENT EVENTS	$177,643	$0	$0	$0	$268	$0	$11,020	$0	$14,272	$0	$203,203	$0	$0	$0
YUISA PEREZ
FMR. CHIEF OF PEOPLE (UNTIL 5/24)	$110,965	$0	$16,339	$0	$16,486	$0	$6,616	$0	$11,460	$0	$161,866	$0	$0	$0

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
PART I, LINE 3	THE COMPENSATION COMMITTEE OF THE MUSEUM'S BOARD MEETS TWICE YEARLY, ONCE IN THE SPRING AND ONCE IN THE LATE SUMMER OR EARLY FALL. THE FIRST MEETING IS FOCUSED ON ESTABLISHING A RECOMMENDATION TO THE FINANCE COMMITTEE THAT BUDGETS FOR THE UPCOMING FISCAL YEAR'S MUSEUM-WIDE MERIT INCREASE POOL. THE SECOND MEETING IS FOCUSED ON THE REVIEW OF THE PERFORMANCE OF KEY EMPLOYEES AND OTHER SENIOR LEADERSHIP STAFF FOR THE PRIOR YEAR AND TO APPROVE THE RECOMMENDATIONS OF THE PRESIDENT FOR ANY SALARY INCREASES. IN ADDITION, THE COMMITTEE REVIEWS THE PERFORMANCE AND COMPENSATION OF THE PRESIDENDT AND RECOMMENDS ANY ADJUSTMENT TO COMPENSATION IF WARRANTED. IN ORDER TO DO THIS IN FULLY KNOWLEDGEABLE MANNER, THE COMMITTE ANNUALLY REVIEWS INFORMATION OBTAINED BY THE CHIEF PEPOPLE OFFICER THOUGH A VARIETY OF RESOURCES. THESE RESOURCES INCLUDE AN OUTSIDE SURVEY GROUP USED TO BENCHMARK EACH OF THE SENIOR MANAGEMENT POSITIONS INCLUDING THE PRESIDENT AGAINST LOCAL NON-PROFIT ORGANIZATIONS THAT ARE OF SIMILAR SIZE. IN ADDITION, THE MUSEUM USES PUBLIC RESOURCES SUCH AS GUIDESTAR TO ACCESS SALARIES OF KEY PEOPLE IN MUSEUMS LOCATED IN METROPOLITAN AREAS. FINALLY, THE MUSEUM PARTICIPATES IN AND RECEIVES INFORMATION FORM LOCAL AND REGIONAL SALARY SURVEYS OF OTHER MUSEUMS IN NEW ENGLAND. THIS PROCESS GIVES A CLEAR PICTURE OF LOCAL, REGIONAL, AND NATIONAL SALARY LEVELS FOR ITS SENIOR MANAGEMENT. THE COMPENSATION COMMITTEE REVIEWS THIS INFORMATION IN ADDITION TO THE HISTORY OF COMPENSATION INCREASES, OVERALL PERFORMANCE OF THE INDIVIDUAL AND OF THE MUSEUM PRIOR TO APPROVING OR MAKING RECOMMENDATIONS FOR COMPENSATION INCREASES.
PART I, LINE 4A	IN JANUARY OF 2024, MIRIAM KRONBERG MUTUALLY DEPARTED FROM MOS WITH A SETTLEMENT AGREEMENT FOR A SUM OF $271,147. IN MAY OF 2024, YUISA PEREZ MUTUALLY DEPARTED FROM MOS WITH A SETTLEMENT AGREEMENT FOR A SUM OF $16,339.
PART I, LINE 7	THE BONUSES SHOWN IN COLUMN B(II) REPRESENT DISCRETIONARY (NON-CONTRACTUAL) PAYMENTS.

Schedule M IRS990ScheduleM

Other Non Cash Contri Table OtherNonCashContriTableGrp (3 entries)

Non Cash CheckboxNonCashCheckboxInd	DescDesc	Noncash Contributions Rpt F990NoncashContributionsRptF990Amt
Yes (X)	COMPUTERS	$187,690
Yes (X)	CREATIVE SERVICES	$30,694
Yes (X)	WORKFORCE	$11,025

Field	Value	IRS element (for citing)
Form8283 Received	0	Form8283ReceivedCnt
Any Property That Must Be Held	0	AnyPropertyThatMustBeHeldInd
Review Process Unusual NC Gifts	Yes (1)	ReviewProcessUnusualNCGiftsInd
Third Parties Used	0	ThirdPartiesUsedInd

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	PART I, LINE 32B:	FormAndLineReferenceDesc
Explanation	IN ALL INSTANCES IN THIS SCHEDULE, FIGURES IN COLUMN (B) REPRESENT NUMBER OF CONTRIBUTIONS, EVEN WHERE A SINGLE CONTRIBUTION MAY INCLUDE MULTIPLE ITEMS. IN ADDITION TO THE DONATED PROPERTY REPORTED IN THIS SCHEDULE, THE MUSEUM BENEFITS FROM THE TIME CONTRIBUTED BY OVER 100 VOLUNTEERS (NOT INCLUDING BOARD MEMBERS). THIS YEAR, THESE VOLUNTEERS CONTRIBUTED 8,487 HOURS (4 FTES), WITH AN EQUIVALENT VALUE OF $184,000.	ExplanationTxt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (5 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
FORM 990, PART VI, SECTION B, LINE 11B	THE MUSEUM'S FORM 990 IS PREPARED BY THE STAFF OF THE ACCOUNTING DEPARTMENT AND REVIEWED BY THE INTERIM VP FINANCE. IT IS ALSO REVIEWED AND ANALYZED BY THE MUSEUM'S OUTSIDE AUDITORS. IT IS THEN PRESENTED TO THE AUDIT AND RISK MANAGEMENT COMMITTEE OF THE MUSEUM'S BOARD FOR FURTHER REVIEW AND APPROVAL. AFTER AUDIT COMMITTEE APPROVAL, THE FINAL VERSION OF FORM 990 IS PROVIDED TO ALL MEMBERS OF THE MUSEUM'S BOARD BEFORE THE FORM IS FILED.
FORM 990, PART VI, SECTION B, LINE 12C	UPON ELECTION/HIRING, AND ANNUALLY THEREAFTER, ALL MUSEUM TRUSTEES, ADVISORS (AN ADVISORY BUT NON-GOVERNING BODY), AND KEY EMPLOYEES ARE REQUIRED TO FILL OUT A CONFLICT OF INTEREST FORM WHICH SOLICITS DETAILED INFORMATION ABOUT ASSOCIATIONS WITH COMPANIES, ORGANIZATIONS, AND EACH OTHER WHICH MAY REPRESENT A CONFLICT OF INTEREST WITH RESPECT TO THE MUSEUM. THE FORMS ARE REVIEWED AT LEAST ANNUALLY BY BOTH THE ASSISTANT CONTROLLER, RF & COMPLIANCE AND INTERIM VP FINANCE TO IDENTIFY ANY REPORTED CONFLICTS WHICH MAY REQUIRE DISCLOSURE AND/OR FURTHER FOLLOW-UP. USING PUBLICLY AVAILABLE SOURCES, ADDITIONAL RESEARCH IS UNDERTAKEN BY MUSEUM STAFF TO IDENTIFY BUSINESS AND ORGANIZATIONAL ASSOCIATIONS WHICH WERE NOT REPORTED ON THE CONFLICT OF INTEREST FORMS. WITH RESPECT TO BUSINESS RELATIONSHIPS BETWEEN THE MUSEUM AND COMPANIES ASSOCIATED WITH TRUSTEES OR KEY EMPLOYEES, IT IS THE MUSEUM'S POLICY TO SUBJECT SUCH COMPANIES TO THE SAME PROCUREMENT POLICIES, PROCEDURES, AND REQUIREMENTS AS IT APPLIES TO OTHER, NON-RELATED, FIRMS.
FORM 990, PART VI, SECTION B, LINE 15	THE COMPENSATION COMMITTEE OF THE MUSEUM'S BOARD MEETS TWICE YEARLY, ONCE IN SPRING AND ONCE IN THE LATE SUMMER OR EARLY FALL. THE FIRST MEETING IS FOCUSED ON ESTABLISHING A RECOMMENDATION TO THE FINANCE COMMITTEE THAT BUDGETS FOR THE UPCOMING FISCAL YEAR'S MUSEUM-WIDE MERIT INCREASE POOL. THE SECOND MEETING IS FOCUSED ON THE REVIEW OF THE PERFORMANCE OF KEY EMPLOYEES AND OTHER SENIOR LEADERSHIP STAFF FOR THE PRIOR YEAR AND TO APPROVE THE RECOMMENDATIONS OF THE PRESIDENT FOR ANY SALARY INCREASES. IN ADDITION, THE COMMITTEE REVIEWS THE PERFORMANCE AND COMPENSATION OF THE PRESIDENT AND RECOMMENDS ANY ADJUSTMENT TO COMPENSATION IF WARRANTED. IN ORDER TO DO THIS IN A FULLY KNOWLEDGEABLE MANNER, THE COMMITTEE ANNUALLY REVIEWS INFORMATION OBTAINED BY THE CHIEF PEOPLE OFFICER THOUGH A VARIETY OF RESOURCES. THESE RESOURCES INCLUDE AN OUTSIDE SURVEY GROUP USED TO BENCHMARK EACH OF THE SENIOR MANAGEMENT POSITIONS INCLUDING THE PRESIDENT AGAINST LOCAL NON-PROFIT ORGANIZATIONS THAT ARE OF A SIMILAR SIZE. IN ADDITION, THE MUSEUM USES PUBLIC RESOURCES SUCH AS GUIDESTAR TO ACCESS SALARIES OF KEY PEOPLE IN MUSEUMS LOCATED IN METROPOLITAN AREAS. FINALLY THE MUSEUM PARTICIPATES IN AND RECEIVES INFORMATION FROM LOCAL AND REGIONAL SALARY SURVEYS OF OTHER MUSEUMS IN NEW ENGLAND. THIS PROCESS GIVES A CLEAR PICTURE OF LOCAL, REGIONAL, AND NATIONAL SALARY LEVELS FOR ITS SENIOR MANAGEMENT. THE COMPENSATION COMMITTEE REVIEWS THIS INFORMATION IN ADDITION TO THE HISTORY OF COMPENSATION INCREASES, OVERALL PERFORMANCE OF THE INDIVIDUAL AND OF THE MUSEUM PRIOR TO APPROVING OR MAKING RECOMMENDATIONS FOR COMPENSATION INCREASES.
FORM 990, PART VI, SECTION C, LINE 19	THE MUSEUM'S FINANCIAL STATEMENTS, FORM 990, AND OTHER KEY DOCUMENTS ARE AVAILABLE IN EITHER HARD COPY OR ELECTRONICALLY UPON REQUEST. FORM 990 IS ALSO AVAILABLE THROUGH PUBLICLY ACCESSIBLE WEBSITES SUCH AS GUIDESTAR.ORG. THE AUDITED FINANCIAL STATEMENTS ARE AVAILABLE ON THE MUSEUM'S WEBSITE AT HTTP://WWW.MOS.ORG/ANNUAL-REPORTS.
FORM 990, PART XI, LINE 9:	AMORTIZATION OF LIABILITY 296,712. CHANGE IN VALUE OF SPLIT INTEREST AGREEMENTS 1,909,416. ROUNDING VARIANCES -252.

Schedule R IRS990ScheduleR

Id Related Tax Exempt Org IdRelatedTaxExemptOrgGrp

Disregarded Entity Name DisregardedEntityName

Field	Value	IRS element (for citing)
Business Name Line1	SCIENCE MUSEUM EXHIBIT COLLABORATIVE	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1 SCIENCE PARK	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	021141099	ZIPCd

Field	Value	IRS element (for citing)
EIN	222578949	EIN
Primary Activities	SUPPORTING ORGANIZATION	PrimaryActivitiesTxt
Legal Domicile State	MA	LegalDomicileStateCd
Exempt Code Section	501(C)(3)	ExemptCodeSectionTxt
Public Charity Status	509(A)(2)- TYPE I	PublicCharityStatusTxt
Direct Controlling NA	N/A	DirectControllingNACd
Controlled Organization	0	ControlledOrganizationInd

Id Related Org Txbl Corp Tr IdRelatedOrgTxblCorpTrGrp

Related Organization Name RelatedOrganizationName

Field	Value	IRS element (for citing)
Business Name Line1	CHARITABLE REMAINDER UNITRUST (3)	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	1 SCIENCE PARK	AddressLine1Txt
City	BOSTON	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	02114	ZIPCd

Field	Value	IRS element (for citing)
Primary Activities	CHARITABLE REMAINDER UNITRUST	PrimaryActivitiesTxt
Legal Domicile State	MA	LegalDomicileStateCd

Direct Controlling Entity Name DirectControllingEntityName

Field	Value	IRS element (for citing)
Business Name Line1	MUSEUM OF SCIENCE	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Entity Type	T	EntityTypeTxt
Controlled Organization	Yes (1)	ControlledOrganizationInd

Field	Value	IRS element (for citing)
Receipt Of Int Annts Rnts Rylts	0	ReceiptOfIntAnntsRntsRyltsInd
Gift Grnt Or Cap Contri To Oth Org	0	GiftGrntOrCapContriToOthOrgInd
Gift Grnt Cap Contri From Oth Org	0	GiftGrntCapContriFromOthOrgInd
Loans Or Guarantees To Other Org	0	LoansOrGuaranteesToOtherOrgInd
Loans Or Guarantees From Oth Org	0	LoansOrGuaranteesFromOthOrgInd
Div Related Organization	0	DivRelatedOrganizationInd
Asset Sale To Other Org	0	AssetSaleToOtherOrgInd
Asset Purchase From Other Org	0	AssetPurchaseFromOtherOrgInd
Asset Exchange	0	AssetExchangeInd
Rental Of Facilities To Oth Org	0	RentalOfFacilitiesToOthOrgInd
Rental Of Fclts From Oth Org	0	RentalOfFcltsFromOthOrgInd
Perform Of Services For Oth Org	0	PerformOfServicesForOthOrgInd
Perform Of Services By Other Org	0	PerformOfServicesByOtherOrgInd
Sharing Of Facilities	0	SharingOfFacilitiesInd
Paid Employees Sharing	0	PaidEmployeesSharingInd
Reimbursement Paid To Other Org	0	ReimbursementPaidToOtherOrgInd
Reimbursement Paid By Other Org	0	ReimbursementPaidByOtherOrgInd
Transfer To Other Org	0	TransferToOtherOrgInd
Transfer From Other Org	0	TransferFromOtherOrgInd